h.openf

来自「强大的数学工具包」· OPENF 代码 · 共 48 行

                                * * * * * * *
                                *   file    *
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        Strings may be read from files using the following commands:

        "fload" 
        "fload()"        opens the default file ___INP, reads all lines,
                         and closes the file. 

        "fload(NAME)"    opens the file NAME, reads all lines, and closes
                         the file.

        "fopen"         
        "fopen()"       opens the default file ___INP. It must exist
                        in the current working directory 
                        (see "? fopen").

        "fopen(NAME)"   opens the file NAME. It must exist in the
                        current working directory (see "? fopen").

        "fread"         
        "fread()"       reads the line the file pointer is pointing to 
                        from the default file ___INP (see "? fread").   

        "fread n"       
        "fread(n)"      reads n lines beginning with the line the file 
                        pointer is pointing to from the default file 
                        ___INP (see "? fread").

        "fread(NAME)"   reads the line the file pointer is pointing to
                        from the file NAME (see "? fread").

        "fread(NAME,n)"  reads n lines beginning with the line the file 
                        pointer is pointing to from the file NAME
                        (see "? fread").

        "fclose"        
        "fclose()"      closes the default file ___INP
                        (see "? fclose").

        "fclose(NAME)"  closes the file NAME (see "? fclose").

        "openf"         lists all currently opened files.

        Listing the currently opened files is not possible in
        sequences and loops.